seymour



(No Model.) 7

J. M. SEYMOUR.

DIE PRESS OONNEUTING ROD.

Patented 001;. 23, 1883.

UNITED STATES PATENT OFFIC JAMES M. SEYMOUR, OF NEWARK, NEW JERSEY.

DIE-PRESS CONNECTING-ROD.

SPECIFICATION forming part of Letters Patent No. 287,333, dated October23, 1 883.

' Application filed April 16, 1883. (No model.)

Adjustments Applied to Press Connecting.

Rods, fully described and represented in the following specification andthe accompanying drawings, forming a part of the same.

In my patent granted April 24, 1883, I have described a method ofadjusting the connecting-rod of a powerpress to adapt it to thereception of punch and dies of different thicknesses by means of a diskeccentric to the axis of the crank-pin, and interposed between it andthe connecting-rod, so that by rotating said disk the distance betweensaid crank-pin axis and the extremity of said rod may be varied by veryminute quantities, which may be measured with accuracy by thedifferential scales which form the principal subject of said patent. Insaid patent the adjusting-disk is secured and held in position by a pininsertedv in one pair of holes belonging to concentric and differentialseries, and it follows that with the arrangement described the smallestad justment possible is the differential'distance intervening betweenthe holes of said series.

a To obviate the disadvantage of this limitation,

as well as to avoid the mechanical disadvantage of removing andreplacing a small detached pin, I herein propose to substitute afriction-clamp for said pin, whereby there is no limitation as toadjustability, and no liability to loss or wear of the detachableportion.

My improvement is adapted for application to many varieties of presses.

My invention also includes a method, by means of transposablepacking-plates, of obtaining an approximate adjustment independent ofthe eccentric rotating disk, whereby the adjustment of theconnecting-rod may be made over a much larger range than would bepossible with said disk alone.

Figure 1 is a form of connecting-rod having a divided rectangular block,I, fitted to a frame, H, formed upon the upper end of the rod, the blockbeing fitted with an adjustingdisk, D, and packing-plates J. Fig. 2 is avided block, as in Fig. 10,or strap,-as in Fig.

vertical section of the same through the crankpin. Fig. 3 is a detachedplan of one of the plates J, and Fig. 4 is an edge view of theadjusting-disk shown in Figs. 1 and 2. Fig. 5 is a front view ofa'modification, showing a cross-head, M, provided with aconnectingrod,.A, having an adjusting-disk, D, inserted in a dividedring and clamped by drawing together the ends of said ring.

Ais the connecting-rod; B, a circular recess formed in one end-thereofto receive a circular adjustable disk, D, which has a bearing, D, formedeccentrically therein to receive the operative crank-pin E.

G is a groove formed in the inner side of th recess B, and O a tongue orannular rib formed on the exterior of the disk D to fit said groove.

E is the crank-pin, formed eccentrically upon the'driving-shaft E, whichlatter, is common to power-presses of the kind to which my im- 7oprovements are adapted.

To prevent the escape of lubricating-oil at the front end of the bearingD it is tightly covered by a cap, as at F, preferably made integral withthe disk D, though it is evident a separable plate may be attached tothe disk D with a joint sufficiently tight to prevent an escape of oil.

G is a bolt inserted through said cap into the center of the crank-pinto retain the parts in proper working relation.

H is a frame formed about a rectangular mortise in the head of aconnecting-rod to reveeive a divided clamping-block, I, which .block isformed with a recess, B, to receive 8 an adjusting-disk, D. 5 J J aretransferable packing-plates, applied to the end of the block I, insidethe frame H, to vary the length of the rod when the adjust ment affordedby the disk D is inadequate.

K K are set-screws for clamping the block and plates inside the frame.Such clamping eifect may be obtained by applying frictional pressure tothe disk at any point; but a di- 5, operates more effectually, becausethe frictional pressure is then distributed over the entire surface ofthe disk. In Figs. 1 and 2 the block I is movable in the frame H, formedat one endof the connecting-rod, and, being holes to fit such pins.

2 esmma split at one or both sides, is capable of compressing andholding the disk firmly under the pressure of the screws K, insertedthrough the upper end of the frame. The block is also shown providedwith the removable packingplates J, one or more of which may be placedbetween the block I and the end of the seat or frame, to lengthen orshorten the connectingrod and produce an approximate adjustment 1 of thesame when the turning of the disk in the recess proves insuificient.When this approximate adjustment has been produced, it is 3 made exactby turning the disk. The plates are shown provided upon one side withshort dowel-pins a, and upon the other side with The bottom of the slotand top of the block are provided with similar holes, and thebottom ofthe block with such pins, for the purpose of retaining the plates andthe block in their places in the frame II when in use. p r 1 When theplates are not required to lengthen the rod, they may be stored at theupper end 1 of the block, and held in place by the pins or andset-screws K, as shown in the drawings.

In the section in Fig. 2 the crank-pin bearing 1) is shown closed at thefront end by a plate, F, for retaining the oil in the bearing, andpreventing it from disfiguring the front ofthe connecting-rod.

The plate is provided with an oil-hole, S, through which the bearing canbe oiled. The disk is also made to hold the connecting-rod in place bymeans of the rib 0, formed on the disk and fitted to the groove 0 insidethe recess B. Such a rib permits the rotation of the disk duringadjustment, but prevents any derangement endwise.

L is the lower end of the connecting-rod,,secured in the cross-head M bya circular socket, (shown in Fig. 5,) and as is common, and a care theindicating marks or scales applied to the disk D and the margin of therecess B, into: which it is fitted. In Fig. 5, a part wherein the recessB is formed is split at one side of the recess and provided with lugs band a clamping-screw, d, by which the disk can be firmly clamped in therecess, and e e are holes; formed in the face of the disk to apply asuit-; able wrench for turnin git. When thus turned; into the desiredposition, it will be seen from; the above description that my presentinven-? tion enables me to dispense with the locking pin and holes atfirst used with my circular difl'erential-scales; that it affords ameans for adjusting the disk D to any point in its rota-f tion, andholding it firmly in its adjustment; also means for retaining the oil inthe front. end of the crank-pin bearing; and that when. the adjustmentsecured by the eccentric disk is insuificient it provides a means oflength-Q ening or shortening the rod by moving 'the eccentric disk,bodily, to or from the opposite end of the rod. 'Having' shown the waythis is done by packing-plates, it is obvious that any desired numberand thickness of such pl ates may be used, and any arrangement of thesame made by the operator. It is also obvious that the oil-retainingplate F may be used upon the sliding block employed in the slottedcross-head of many power presses, as the crank-pin of such pressesrotates in the bearing in the block in a similar manner, and is equallyliable to have the oil run out at the front thereof. But theoil-retaining plate F may be used apart from the adjusting-disk byformingthe bearing D directly in either the connecting-rod or in theoscillating block used withslotted cross-heads. The oil-hole S may alsobe made at the upper edge of the bearing D'.- I have therefore claimedthe oil-retaining device independently of the disk, as its use is notdependent thereon.

It is obvious thatthe top of the frame H may be "closed by a straightbar or strap having a bolt'ateach end to press it against the "dividedblock in the place of the set-screw K, and I do not therefore limitmyself to the precise construction shown.

Having'thus described my'invention, I claim the same as follows:

1. Apress stamp or connecting rod provided with an, adjusting-diskhaving an eccentric bearing formed therein, whereby'the effective lengthof said jrod may be varied, and differential concentric scales inscribedupon said disk and the surrounding part in which it turns, whereby saidchanges of adjustment may be ascertained and determined, and asurface-friction clamp for'said disk, whereby the same may be adjustedand held at any point without restriction, substantially as set forth: h

2. The combination, in a press connectingrod, of the frame H, thedivided block I, having the recess B and groove 0 formed therein,'theadjustable disk D, formed with tongue to fit the groove, andprovided with the eccentric bearing D,and means, substantially assetforth, for clamping the disk by frictioninto the recess. v

3. The combinatiomwith the crank-pin E, of theerank-pinbearing B,tightly closed at its front end to escape of oil, and providedwith'a'hole to permit the introduction of oil at the front end of saidbearing, substantially as and for the purpose set forth.

4. The combination, in a press connectingrod, of the frame H, thedivided block I, formed with the recess B, the adjustable disk having aneccentric bearing formedtherein, one or more removableinterlocking'plates J, and means, substantially as described, forclamping the block and plates into the frame, asand for the purposes setforth.

5, The combination, in a press-connection, of the crank-pin E, thebearing box wherein saidcrank-pin may revolve, provided with theoil-retaining plate F, integral with disk D, as described, and the screwG, inserted through the plateinto the crank-pin, as and for the purposeset forth. for clamping the block and plates into the 6. Thecombination, in a press connectingframe, as and for the purpose setforth. rod, of the frame H, the divided block I, JAS. M. SEYMOUR. 5formed with the recess B, the adjustable disk Witnesses:

having an eccentric bearing formed therein, R. D. 0. SMITH, one or moreremovable interlocking packing- J. O. TURNER.

plates, J, and means, substantially as described,

